Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-397 A Denver CO DNVRCOMAX5Z  7421 AT&T - LOCAL 656      
720-397 0 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   
720-397 1 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   
720-397 2 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   
720-397 3 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   
720-397 4 Denver CO DNVRCOMAX5Z  7421 AT&T - LOCAL 656   2009-10-26   
720-397 5 Denver CO DNVRCOMAX5Z  7421 AT&T - LOCAL 656   2009-10-26   
720-397 6 Denver CO   145J TERRA NOVA TELECOM INC. 656   2024-02-14   
720-397 7 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   
720-397 8 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   
720-397 9 Denver CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656   2009-10-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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